create skill controller

backend/secret-archive-rest/src/main/java/cz/fi/muni/pa165/seminar4/group7/controller/SkillController.java

+package cz.fi.muni.pa165.seminar4.group7.controller;
+
+import cz.fi.muni.pa165.seminar4.group7.BeanMappingService;
+import cz.fi.muni.pa165.seminar4.group7.SkillService;
+import cz.fi.muni.pa165.seminar4.group7.dto.skill.SkillDTO;
+import cz.fi.muni.pa165.seminar4.group7.entity.Skill;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.StreamSupport;
+
+@CrossOrigin(origins = "http://localhost:4200")
+@RestController
+@RequestMapping("/skills")
+public class SkillController {
+
+    private SkillService skillService;
+    private BeanMappingService beanMappingService;
+
+    public SkillController(SkillService skillService, BeanMappingService beanMappingService) {
+        this.skillService = skillService;
+        this.beanMappingService = beanMappingService;
+    }
+
+    @GetMapping()
+    public List<SkillDTO> getAll() {
+        return StreamSupport.stream(skillService.findAll().spliterator(), false)
+                .map(o -> beanMappingService.map(o, SkillDTO.class))
+                .collect(Collectors.toList());
+    }
+
+    @PostMapping()
+    public SkillDTO createSkill(@RequestBody SkillDTO skillDTO) {
+        var skill = new Skill();
+        var createdSkill = beanMappingService.map(skillDTO, Skill.class);
+        skill.setName(createdSkill.getName());
+        skillService.create(skill);
+        return beanMappingService.map(skill, SkillDTO.class);
+    }
+}